00:01
Hi, i'm david and i'm here to help you understand your question.
00:03
Now let me bring up your question here.
00:06
In the question here, we are going to discuss about the competent interval for the mean.
00:11
The formula for the complement interval for the mean, it will be the x bar, using for the mu, x bar, plus and minus the tm minus 1 degree freedom and far over 2, 10 .2 ,000 s divided number square of n.
00:26
In this question, we're given the dataset here.
00:29
So the first thing we need to find it will be the end.
00:32
We count here one, two, three, four, five, six and seven of them.
00:37
We need to find the x bar and the s as well.
00:40
So let me pass the data into the calculator.
00:43
45 .3, 47 .1, 44 .2, 46 .8, 46 .5, 45 .5, 47 .6.
00:56
And we get the x bar it will equal to the 46 .149 and we have the s it will equal to the 1 .190 and then from the formula we want to find the 99 % confidence.
01:16
Look at the formula we have obtained the x bar the s and the n...